News tagged with tobacco hornworm
Deterring signals: Tobacco plants advertise their defensive readiness to attacking leafhoppers
Following herbivory, plants produce jasmonic acid, a hormone which activates several plant defense reactions. Scientists found that leafhoppers can evaluate whether tobacco plants are ready for defense when attacked. If jasmonate-signaling ...
May 23, 2012 |
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Low oxygen triggers moth molt
A new explanation for one of nature's most mysterious processes, the transformation of caterpillars into moths or butterflies, might best be described as breathless.
Aug 22, 2011 |
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How moths key into the scent of a flower
Moths need just the essence of a flower's scent to identify it, according to new research from The University of Arizona in Tucson.
Mar 05, 2009 |
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Search results for tobacco hornworm
Flies process attractive and deterrent odors in different brain areas
In collaboration with colleagues from Portugal and Spain, researchers at the Max Planck Institute for Chemical Ecology in Jena, Germany, have developed an apparatus that automatically applies odors to an airstream, ...
Apr 25, 2012 |
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Using plants to silence insect genes in a high-throughput manner
Scientists at the Max Planck Institute for Chemical Ecology, Germany, are now using a procedure which brings forward ecological research on insects: They study gene functions in moth larvae by manipulating ...
Feb 02, 2012 |
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Bugs and paperwork: How unlocking the genetic secret of insects could improve human health and welfare
It's difficult to find much unused table space in Michael Kanost's office. The university distinguished professor and head of the department of biochemistry has nearly all of it claimed by stacks of folders ...
Oct 28, 2011 |
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Genetic engineers create smarter toxins to help crops fight resistant pests
One of the most successful strategies in pest control is to endow crop plants with genes from the bacterium Bacillus thuringiensis, or Bt for short, which code for proteins that kill pests attempting to eat ...
Oct 09, 2011 |
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Can you really eat just one?
A Kansas State University genomicist is hoping an old potato chip slogan -- "betcha can't eat just one" -- will become the mindset of researchers when it comes to sequencing insect genomes.
Jul 29, 2011 |
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Molecular messages from the antennae
(PhysOrg.com) -- Insects use their antennae for smelling and thus for locating resources in their environment. In an online first article published today, Max Planck researchers present the first complete ...
Apr 15, 2011 |
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Lethal backfire: Green odor with fatal consequences for voracious caterpillars
During field studies, scientists at the Max Planck Institute for Chemical Ecology discovered that the oral secretions of tobacco hornworm larvae contain a particular substance that promptly ...
Aug 26, 2010 |
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Bitter-tasting nectar and floral odors optimize outcrossing for plants
Animals "personally" bring their gametes together – seeking out sexual partners, mating, fertilizing, and reproducing. Plants, however, are sessile organisms and require the help of a third party, the pollinator, ...
Biology /
Aug 28, 2008 |
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Can moths or butterflies remember what they learned as caterpillars?
Butterflies and moths are well known for their striking metamorphosis from crawling caterpillars to winged adults. In light of this radical change, not just in body form, but also in lifestyle, diet and dependence on particular ...
Biology /
Mar 05, 2008 |
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For many insects, winter survival is in the genes
Many insects living in northern climates don't die at the first signs of cold weather. Rather, new research suggests that they use a number of specialized proteins to survive the chilly months.
Biology /
May 30, 2007 |
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List of search results for tobacco hornworm
